Liu, Chengpeng, Wei Zou, and Guoqiang Wang. 2013. “Wideband 5-Bit MMIC Digital Attenuator With High Precision”. International Journal of Recent Contributions from Engineering, Science & IT (iJES) 1 (2):pp. 40-43. https://doi.org/10.3991/ijes.v1i2.3258.